Heater & Chiller Sizing Calculator

This calculator estimates the size, or power, of heater and chiller required to maintain an aquarium between a specified temperature range. Before using this calculator, please read the instructions.

Aquarium Dimensions:

Outer Length:
 

Outer Width:
 

Outer Height:
 

Material:


Thickness:
 

Water Volume:
 

Air Speed Around Aquarium:
  per



Aquarium Top:

Air Speed Over Aquarium Top:
  per

Cover Type:




Aquarium Bottom:

Supporting Panel Type:




Aquarium Sides:

Side Insulation Type:

Water Chemistry:

Salinity:
 



Rate of Evaporation:

Evaporation:
 

Per:
 



Desired Temperature Range:

Minimum:
 

Maximum:
 



Ambient Room Temperature Range:

Minimum:
 

Maximum:
 



Heat Contributed By Equipment*:

Minimum:
 Watts

Maximum:
 Watts

* This is not the same as the total wattage of your system.
Please see the instructions.


Equilibration Time:

Maximum Start-Up Time:
 



Results:
Minimum Heater Size
During Startup:
 Watts

After That:
 Watts


Minimum Chiller Size
During Startup:
 BTU/h

After That:
 BTU/h

Please see the instructions for the best way to interpret the values this calculator generates.